@inproceedings{bac47affafbe43f0a8495b16465b9ac3,
title = "Design Of Compact SIW BPF Matching Network With Harmonic Suppression Capability",
abstract = "This paper presents the design of compact substrate integrated waveguide (SIW) bandpass filter (BPF) with impedances matching functionality and harmonic suppression capability. The proposed SIW BPF matching network (MN) is realized based on the quarter-mode (QM) and one-eight-mode (OEM) SIW cavities. The ultra-wide stopband characteristic with high out-of-band signal suppression up to several harmonic frequencies can be achieved by embedding defected microstrip structure (DMS) at the input and output ends of the proposed circuits. To validate the proposed concept, the BPF MNs consisting of QM-OEM and QM-QM SIW cavities are designed at X-band frequency. A compact QM-OEM SIW BPF MN is designed with the termination impedances of (15+j15)-to-50 Ω. Similarly, a compact QM-QM SIW BPF MN is designed with the termination impedances of 20-to-50 Ω. The proposed compact SIW BPF MNs provide very high frequency selectivity with minimum out-of-band signal suppression of around 20 dB up to 40 GHz at the higher stopbands.",
keywords = "Bandpass filter, compact size, harmonics suppression, matching network, wide-stopband",
author = "Palaystint Thorng and Phanam Pech and Suyeon Kim and Girdhari Chaudhary and Yongchae Jeong",
note = "Publisher Copyright: {\textcopyright} 2025 IEEE.; 2025 Asia-Pacific Microwave Conference, APMC 2025 ; Conference date: 02-12-2025 Through 05-12-2025",
year = "2025",
doi = "10.1109/APMC65046.2025.11378968",
language = "English",
series = "Asia-Pacific Microwave Conference Proceedings, APMC",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
booktitle = "APMC 2025 - 2025 Asia-Pacific Microwave Conference",
}